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-rw-r--r--ssl/s3_cbc.c38
1 files changed, 19 insertions, 19 deletions
diff --git a/ssl/s3_cbc.c b/ssl/s3_cbc.c
index ad100b3bde..f31dc046f3 100644
--- a/ssl/s3_cbc.c
+++ b/ssl/s3_cbc.c
@@ -761,25 +761,25 @@ void tls_fips_digest_extra(const EVP_CIPHER_CTX *cipher_ctx,
if (EVP_CIPHER_CTX_mode(cipher_ctx) != EVP_CIPH_CBC_MODE)
return;
block_size = EVP_MD_CTX_block_size(mac_ctx);
- /*-
- * We are in FIPS mode if we get this far so we know we have only SHA*
- * digests and TLS to deal with.
- * Minimum digest padding length is 17 for SHA384/SHA512 and 9
- * otherwise.
- * Additional header is 13 bytes. To get the number of digest blocks
- * processed round up the amount of data plus padding to the nearest
- * block length. Block length is 128 for SHA384/SHA512 and 64 otherwise.
- * So we have:
- * blocks = (payload_len + digest_pad + 13 + block_size - 1)/block_size
- * equivalently:
- * blocks = (payload_len + digest_pad + 12)/block_size + 1
- * HMAC adds a constant overhead.
- * We're ultimately only interested in differences so this becomes
- * blocks = (payload_len + 29)/128
- * for SHA384/SHA512 and
- * blocks = (payload_len + 21)/64
- * otherwise.
- */
+ /*-
+ * We are in FIPS mode if we get this far so we know we have only SHA*
+ * digests and TLS to deal with.
+ * Minimum digest padding length is 17 for SHA384/SHA512 and 9
+ * otherwise.
+ * Additional header is 13 bytes. To get the number of digest blocks
+ * processed round up the amount of data plus padding to the nearest
+ * block length. Block length is 128 for SHA384/SHA512 and 64 otherwise.
+ * So we have:
+ * blocks = (payload_len + digest_pad + 13 + block_size - 1)/block_size
+ * equivalently:
+ * blocks = (payload_len + digest_pad + 12)/block_size + 1
+ * HMAC adds a constant overhead.
+ * We're ultimately only interested in differences so this becomes
+ * blocks = (payload_len + 29)/128
+ * for SHA384/SHA512 and
+ * blocks = (payload_len + 21)/64
+ * otherwise.
+ */
digest_pad = block_size == 64 ? 21 : 29;
blocks_orig = (orig_len + digest_pad) / block_size;
blocks_data = (data_len + digest_pad) / block_size;